package com.sgffsg.learn.javalib.thread;

import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Stack;

/**
 * @author: lmk
 * @date: 2024/3/31
 * @desc:
 */
public class ObjectTest {

    public static void main(String[] args) {
        Object test = new Object();
        String testName = "test";
        HashSet<Integer> set = new HashSet();
        List<Integer> list = new ArrayList<Integer>();
        List<Integer> linkedList = new LinkedList<>();
        Collections.reverse(list);
        Map<Character,Character> map = new HashMap();
        map.put('2','c');
        HashMap<String,Integer> map2 = new HashMap<>();
        Map<String,Integer> safeMap = Collections.synchronizedMap(map2);
        Queue<Integer> queue = new ArrayDeque<>();
        Stack<Integer> stack = new Stack<>();

    }
}
